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<TITLE>Send NULL arg to Class constructor</TITLE>
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<FONT FACE="Calibri, Verdana, Helvetica, Arial"><SPAN STYLE='font-size:11pt'>Hi all – I have ported over one of our applications from using itcl to using xotcl. I have a lot of code that already uses the itcl stuff, so the port must be backwards compatible. I have the following issue. Can anyone give me an idea how I can get around it? A script that shows my issue is as follows:<BR>
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#!/usr/bin/tclsh<BR>
package req XOTcl<BR>
namespace import ::xotcl::*<BR>
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::xotcl::Class Connect -parameter {<BR>
{telnet}<BR>
{ssh}<BR>
{ip}<BR>
}<BR>
Connect instproc init {node args} {<BR>
[self] instvar telnet<BR>
[self] instvar ip<BR>
}<BR>
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Connect dev node -ip "127.0.0.1" -telnet<BR>
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The above does not work, as it seems that the –telnet arg must not be NULL, however, I need this to be NULL, as it is just a flag.<BR>
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If I pass in:<BR>
Connect dev node -ip "127.0.0.1" -telnet “”<BR>
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This works, however, this is not backwards compatible with how things were with itcl, and I have too many users/scripts to change how this is done.<BR>
There are potentially 2 ways around this, however, I am unable to find information on if either of them are possible:<BR>
</SPAN></FONT><OL><LI><FONT FACE="Calibri, Verdana, Helvetica, Arial"><SPAN STYLE='font-size:11pt'>Allow the passing in of a NULL argument
</SPAN></FONT><LI><FONT FACE="Calibri, Verdana, Helvetica, Arial"><SPAN STYLE='font-size:11pt'>Prevent the constructor parsing args so that I can parse my own <BR>
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I would appreciate any assistance<BR>
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Cheers<BR>
Colin<BR>
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